Low false alarm rate RPL network monitoring system by considering timing inconstancy between the rank measurements. - Takumi Matsunaga; Kentaroh Toyoda; Iwao Sasase (ISWCS, 2014)

Secure parent node selection scheme in route construction to exclude attacking nodes from RPL network. - Kenji Iuchi; Takumi Matsunaga; Kentaroh Toyoda; Iwao Sasase (APCC, 2015)

Emotional Similarity Word Embedding Model for Sentiment Analysis. - Kazuyuki Matsumoto; Takumi Matsunaga; Minoru Yoshida; Kenji Kita (Computación y Sistemas, 2022)